Adjustable Vehicle Body Structure for Space and Drag Control
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Solution Overview
Problem
Current vehicles lack the ability to dynamically adjust their internal space for various purposes, forcing users to choose between different vehicles based on intended use.
Innovation Solution
A vehicle body design featuring an upper body and a lower body connected by a driving unit that allows the upper body to be raised or lowered, expanding or reducing the internal space as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the vehicle body is made fixed and rigid to ensure structural stability, then the structural stability is improved, but the adaptability for different uses deteriorates
Solution Approach 1:
The vehicle body is divided into a lower body and an upper body that can move relative to each other vertically. The upper body can be raised or lowered to change the internal space volume, allowing the same vehicle structure to adapt to different uses such as passenger transport or cargo hauling without compromising structural stability.
2Volume of moving object
If the upper body is raised to expand internal space for passenger comfort, then the internal space volume is improved, but the air resistance increases
Solution Approach 1:
The upper body height is made adjustable through a driving unit that can raise or lower the upper body. When the vehicle is parked, the upper body is raised to maximize internal space for passenger comfort. When driving, the upper body is lowered to reduce air resistance and improve fuel efficiency, thus dynamically resolving the contradiction between internal space volume and air resistance.
3Adaptability or versatility
If a driving unit is added to enable upper body movement, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The vehicle body is segmented into a lower body and an upper body that can move independently relative to each other. This segmentation allows the upper body to be raised or lowered by the driving unit, providing adaptability for different uses while keeping the lower body structure simple and stable.
4Object-affected harmful factors
If the upper body is lowered to reduce air resistance during driving, then the air resistance is reduced, but the internal space volume decreases
Solution Approach 1:
The upper body position is dynamically adjusted based on driving conditions. During driving, the upper body is lowered to reduce air resistance and improve fuel efficiency. When parked, the upper body is raised to expand internal space for passenger comfort or cargo storage. This dynamic adjustment resolves the contradiction between air resistance and internal space volume.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables flexible use of the vehicle's internal space for different purposes, such as increased passenger comfort when parked and reduced air resistance for improved fuel efficiency when driven.
Implementation Method 1
The driving unit may include a lead screw coupled to the floor to be connected to a rotation shaft of a driving motor and extending upward, and a nut coupled to the lower portion of the upper body and meshed with the lead screw, and the upper body may be raised and lowered according to the rotation of the lead screw.
Implementation Method 2
The driving unit may include a hydraulic device connecting the floor and the upper body, and the upper body may be moved in a vertical direction according to operation of the hydraulic device.
Data Source
AI summary
A vehicle body includes an upper body forming an internal space of the vehicle and to include a door for entry and exit of an occupant provided on a side thereof, a lower body including a floor on which the upper body is located and a bumper unit extending upward along a perimeter of the floor to surround a lower portion of the upper body, wherein the bumper unit includes an opening portion which is provided at a position corresponding to a lower portion of the door of the upper body to be selectively opened, and a driving unit coupling the upper body and the lower body to each other and configured to adjust the height of the internal space by raising and lowering the upper body with respect to the lower body.